Multi-dentate ligand complexes of lanthanide and actinide metal ions
Thesis/Dissertation
·
OSTI ID:7222254
The coordinate chemistry of several multidentate ligands has been studied to evaluate their potential as actinide(IV) chelating agents and to understand the effect of tetracatecholate ligands on Am(III) distribution in vivo. Lanthanides were used as models of actinides in the same oxidation state and with similar ionic radii. The aqueous and bioinorganic chemistry of Pu(IV) and Am(III) is reviewed, and the rationale behind the design and evaluation of new chelating agents is discussed. The synthesis and isolation of bic-, tris-, and tetrakis(catecholato) lanthanide(III) complexes formed in basic (pH > 11) aqueous solutions and x-ray crystal structures of the tris- and tetrakis(catecholato) gadolinium(III) compounds are reported. The stability and protonation behavior of Ce(III) with catechol and hydroxypyridinone derivatives of desferrioxamine B (called DFOCAMC and DFOHOPO, respectively) as determined by potentiometric and spectral titrations and the electrochemistry of Ce-DFOCAMC are described. The formation constants and the stability of the complexes are reported. The synthesis of two different types of chelating polymers and the preliminary investigation of their metal chelating polymers and the preliminary investigation of their metal binding ability are presented. The first type is a polystyrene supported catechoyl amide and the second type incorporates the catechoyl moiety into the backbone of a linear polyamide.
- Research Organization:
- California Univ., Berkeley (USA)
- OSTI ID:
- 7222254
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
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Conference
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Wed Oct 01 00:00:00 EDT 1997
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Specific sequestering agents for the actinides. 8. synthesis and structural chemistry of tetrakis(thiohydroxamato) hafnium(IV) in Hf(CH/sub 3/C/sub 6/H/sub 4/(S)N(O)C/sub 3/)/sub 4/. C/sub 2/H/sub 5/OH
Journal Article
·
Wed Mar 31 23:00:00 EST 1982
· Inorg. Chem.; (United States)
·
OSTI ID:5226007
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
AROMATICS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CRYSTAL STRUCTURE
DEVELOPERS
HYDROXY COMPOUNDS
KINETICS
ORGANIC COMPOUNDS
PHENOLS
POLYPHENOLS
PYROCATECHOL
RARE EARTH COMPOUNDS
REACTION KINETICS
STABILITY
SYNTHESIS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
AROMATICS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CRYSTAL STRUCTURE
DEVELOPERS
HYDROXY COMPOUNDS
KINETICS
ORGANIC COMPOUNDS
PHENOLS
POLYPHENOLS
PYROCATECHOL
RARE EARTH COMPOUNDS
REACTION KINETICS
STABILITY
SYNTHESIS